Northwest Blooms · Shrubs
Hydrangea macrophylla 'Monmar'
Blue Enchantress Hydrangea
- Family
- Hydrangeaceae
- Height
- Up to 5 feet
- Width
- Approximately 5 feet
- Flower color
- Sky blue (acidic soil) or pinkish (alkaline soil); flowers mature to cream splashed with green
- Foliage color
- Forest green, with dark stems
- Bloom time
- Late spring to early fall
- Light
- Full sun to partial shade
- Water
- Moist, well-drained soil
- Maintenance
- Low; prune after flowering as needed
- Growing zone
- USDA zones 4 to 9
- Wildlife
- Attracts pollinators such as bees and butterflies
About this plant
Hydrangea macrophylla 'Monmar', known as Blue Enchantress Hydrangea, is a mophead hydrangea distinguished by its vibrant flowers and unique dark burgundy stems. Blooming from late spring through summer, its large, rounded clusters of flowers shift between vivid blue to deep pink depending on soil pH. The dramatic contrast between the blooms and the dark stems adds a touch of elegance to gardens and arrangements.
This cultivar was bred to enhance both beauty and versatility, offering gardeners a stunning choice for borders or containers. Its combination of richly colored flowers and striking stems reflects advancements in hydrangea breeding, delivering ornamental impact throughout the growing season.
Works well in
Shade Gardens · Foundation Plantings · Cut Flower Gardens · Cottage Gardens
Companion plants
Sweet box · Bleeding heart · Pieris · Foam flower · Lungwort · Ajuga
Design tip
Take advantage of ‘Blue Enchantress’ dark burgundy stems by keeping its lower branching visible rather than completely obscuring it with neighboring plants. The exposed stems add definition beneath the large mophead flowers and extend its ornamental value beyond bloom color alone.
